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gh-118331: Fix test_list.ListTest.test_no_memory under trace refs build #130921

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Merged
mpage merged 1 commit into from
Mar 6, 2025
Merged

gh-118331: Fix test_list.ListTest.test_no_memory under trace refs build #130921

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9 changes: 7 additions & 2 deletions 9 Lib/test/test_list.py
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
import signal
import sys
import textwrap
from test import list_tests, support
Expand Down Expand Up @@ -324,8 +325,12 @@ def test_no_memory(self):
_testcapi.set_nomemory(0)
l = [None]
""")
_, _, err = assert_python_failure("-c", code)
self.assertIn("MemoryError", err.decode("utf-8"))
rc, _, _ = assert_python_failure("-c", code)

@colesbury colesbury Mar 6, 2025

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Can we mark the test with @unittest.skipIf(support.Py_TRACE_REFS, 'cannot test Py_TRACE_REFS build') so that we don't run it under --with-trace-refs?

That's what we do in test_repl's test_no_memory (a different test with the same name).

Along those lines, I'm a bit confused because the PR refers to #118331, but that's a bug report for test_no_memory in test_repl.py not the test_no_memory in test_list.py.

@mpage mpage Mar 6, 2025

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Can we mark the test with @unittest.skipIf(support.Py_TRACE_REFS, 'cannot test Py_TRACE_REFS build') so that we don't run it under --with-trace-refs?

Sure, I have a slight preference for this change since it's testing the thing we care about (not segfaulting) and works in both builds, but that's fine with me.

Along those lines, I'm a bit confused because the PR refers to #118331, but that's a bug report for test_no_memory in test_repl.py not the test_no_memory in test_list.py.

The PR that introduced the failure under tracerefs is linked to that issue so I figured it was fine to link to it as well. I'll create a new issue for this.

@colesbury colesbury Mar 6, 2025

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Okay that makes sense. It doesn't need a new issue

if support.MS_WINDOWS:
# STATUS_ACCESS_VIOLATION
self.assertNotEqual(rc, 0xC0000005)
else:
self.assertNotEqual(rc, -int(signal.SIGSEGV))

if __name__ == "__main__":
unittest.main()
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